path: root/6e/3ec003778de64e69688899f097379d3b26044e

Delivery-date: Thu, 04 Jul 2024 06:22:01 -0700
Received: from mail-oa1-f60.google.com ([209.85.160.60])
	by mail.fairlystable.org with esmtps  (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
	(Exim 4.94.2)
	(envelope-from <bitcoindev+bncBC3PT7FYWAMRB4ODTK2AMGQEBQBY5YY@googlegroups.com>)
	id 1sPMPQ-0001f0-Ks
	for bitcoindev@gnusha.org; Thu, 04 Jul 2024 06:22:01 -0700
Received: by mail-oa1-f60.google.com with SMTP id 586e51a60fabf-25e1d0ef6d6sf663437fac.3
        for <bitcoindev@gnusha.org>; Thu, 04 Jul 2024 06:22:00 -0700 (PDT)
ARC-Seal: i=2; a=rsa-sha256; t=1720099314; cv=pass;
        d=google.com; s=arc-20160816;
        b=JlYyZ06hDex5cGAmNVSxNjOIAJCfl6Nv9Dc0vL61PGOhRmu++RP7f8ADEuJcNUhZyz
         pvSnjV5Fe+rpfxYQPOJNdfZGUDcPbk3NKk+gWqdzyp8nxCxkbaaTcYE+2HbpKrJt9PfI
         4x6C+UuPr14fU74+rvl79Q9/xw9FIrvQnwBTXYEP69W7s1sMw166+ZHBMWYLDrqTdqSd
         yHzYWJiEXek+mDRQMxNqNUenEWq++GKVnVXkAbkTCC+ajgnDKuDoaHBcY/J1wT3ltHqF
         S8stLv0MJX+dXgXsRfoydrje7NHAhA4EGHNVhSe0gYRycsJDcGHDEPP4Pzd9Hcd+DyZH
         VvsA==
ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post
         :list-id:mailing-list:precedence:cc:to:subject:message-id:date:from
         :in-reply-to:references:mime-version:sender:dkim-signature
         :dkim-signature;
        bh=wss6yclUh0wGxCspujMl3mC6AF/1HD3IWjDHQ6ImcEs=;
        fh=fzXtaSIoq7PYYZhNjXlppYwCv1+NOESxkQZfl6Al6zw=;
        b=e0JK1pln7beURTI0rTr6Yf2284VSwCsMDuscttikjUtzrNUja2RofD2h90wF19r2vT
         BMNGmqBAz+Mt/fDpeRTi0FjoWaWSyVD6UANTxs157FQm5Eo3Z21RCCtZxYONPlAfvYbv
         u5HWlYzdZHHGz6ofZX+M2BnFvq3JWh/ZmWf+vWY3JVl5W32udYXPwEBqI0XiOjoWAo8U
         P64pCIdWC9tZVlby7s38+svVr/DwzKsW67FpIl2lYypjWaeBkYMHFrozxfNIyJCbwt9t
         Osh/FMVNdmE3q1RDztGNjHreVjw0Xulm66/fRxDVTVdsMll5RxMg3dHHnvUq2nVhPKHh
         H9kg==;
        darn=gnusha.org
ARC-Authentication-Results: i=2; gmr-mx.google.com;
       dkim=pass header.i=@gmail.com header.s=20230601 header.b=Y9h0Q4UX;
       spf=pass (google.com: domain of antoine.riard@gmail.com designates 2607:f8b0:4864:20::d35 as permitted sender) smtp.mailfrom=antoine.riard@gmail.com;
       dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=googlegroups.com; s=20230601; t=1720099314; x=1720704114; darn=gnusha.org;
        h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post
         :list-id:mailing-list:precedence:x-original-authentication-results
         :x-original-sender:cc:to:subject:message-id:date:from:in-reply-to
         :references:mime-version:sender:from:to:cc:subject:date:message-id
         :reply-to;
        bh=wss6yclUh0wGxCspujMl3mC6AF/1HD3IWjDHQ6ImcEs=;
        b=YbxHv80jpC5pEckL782aLmec1gHIBFiAlAE5Xr/sa6O7uXr9hZLyaRtEzGqu8LIv0G
         ICqlkP3CV34bLPf4EcoG+mOZNSVxz91jYvu3SgKUOD4MSDZkqTXa8h5d7XBdZEvs1fLa
         L8gjSbAjGi3qhZhhn4cCvGp6wYL3LmptRF2+MtS5z4EtDZvZyxvoo+/P2rW9Y/E5i3cL
         pV06zzvnwWduYEvCMq/kzTmez66iKL8gNjHEhzA1kHVTTiLidZm3+yCo4IG3886wub8/
         VbuJrDUcFCydFNo1CoMUeShQ6Y6b63L+blGv0jt19gPhDGgMnt5Xj4Lk8+cgOCoV05Qe
         eIGQ==
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20230601; t=1720099314; x=1720704114; darn=gnusha.org;
        h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post
         :list-id:mailing-list:precedence:x-original-authentication-results
         :x-original-sender:cc:to:subject:message-id:date:from:in-reply-to
         :references:mime-version:from:to:cc:subject:date:message-id:reply-to;
        bh=wss6yclUh0wGxCspujMl3mC6AF/1HD3IWjDHQ6ImcEs=;
        b=kmmm5Y43NSpcZMUfqB1azxzFuTX4yC6AR09m4Uz30WNB8YJY/KAtKE8ocWLfVj+npG
         +d+6QkOJ1QgbU8YJh67jhLQuS7WEmDbi7stG+vUMvAAm8b9vtckfPDeMDqMB7tpGyJ6H
         ZzzcQMSwhov9Cpg5KIBOmaDTkeszeFkn8s36D0MJdEo5Vzb84IXEYpaOgEARoC1Dvg2b
         zVahP1KfHdc7eJI3sGP34Rqfv4/WTf1tE/UooW76oiM8N0KgqMN+W0pjD5hty57jHpbl
         FmSCz/2Di/p+nizGW1wAB/qnLnoyeo/m4lxS0PpYZsjmWyN7h96rhb+oKhkDajnRuiZm
         u7WQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20230601; t=1720099314; x=1720704114;
        h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post
         :list-id:mailing-list:precedence:x-original-authentication-results
         :x-original-sender:cc:to:subject:message-id:date:from:in-reply-to
         :references:mime-version:x-beenthere:x-gm-message-state:sender:from
         :to:cc:subject:date:message-id:reply-to;
        bh=wss6yclUh0wGxCspujMl3mC6AF/1HD3IWjDHQ6ImcEs=;
        b=XrmqUY7KFoKnoeFX4kK68bDgec/073dDVmZbH51OxNoAamdy3Du4Bp0GN0dBBvMMxc
         sK7XdaCdQHzqRbbC1OwtH2SrxZuk4X6Ix35L8tW93lhVdX5y+70kLoS3s/ePuRFERxsD
         5GeVFjQgYfCsWJLq5ZAy6arCsaAxqHKxIf6yRt2/xy3VCZC3oHvc3B+BC3qFx2F8+sX0
         DIu5JNefH45eIt3GmW3hKI9WAzpyMIxL3DjWnc/GDuVY+QgYpUr+pHyOSCVtLeFLTqIh
         Tr3c1MaimHzthzIZvvzzyF9xR358EmgdLkL7WHqfb5cFVPNiC/EXmmNI9UeNLDK3s6Tu
         hCuQ==
Sender: bitcoindev@googlegroups.com
X-Forwarded-Encrypted: i=2; AJvYcCX8DKJtdvv5t6/izXfNeAPSi3WIDA1HQgFGsaODWJITqZOa1YUiJwl9FJ0Em/ewzI81Y3G1veH844md8r04c+KDETKiZ+o=
X-Gm-Message-State: AOJu0YwElt4H/T7fTMf4C6saB0Na7SAoxcnDWHIzYN9cu2rrJh5TwlVH
	pBkj3k8SOPsH4Uuv7Q8XChiwlYy9wY5Wr9dc4HESy0CX0l6lzznV
X-Google-Smtp-Source: AGHT+IGGAH+C1QDlFc0putC9jl9/VKRac/com6JqIup79JgxJ+Y261qd/MvPfyKJzbYuQdfYW5mcOg==
X-Received: by 2002:a05:6871:24cd:b0:24f:cddc:ccfe with SMTP id 586e51a60fabf-25e2b59025fmr1415152fac.0.1720099314208;
        Thu, 04 Jul 2024 06:21:54 -0700 (PDT)
X-BeenThere: bitcoindev@googlegroups.com
Received: by 2002:a05:6871:708:b0:259:8c55:f25a with SMTP id
 586e51a60fabf-25e27dd6d81ls885881fac.0.-pod-prod-05-us; Thu, 04 Jul 2024
 06:21:52 -0700 (PDT)
X-Received: by 2002:a05:6871:10a:b0:254:cbaf:120b with SMTP id 586e51a60fabf-25e2b9de84cmr113048fac.1.1720099312717;
        Thu, 04 Jul 2024 06:21:52 -0700 (PDT)
Received: by 2002:aca:1c0c:0:b0:3d5:202d:f617 with SMTP id 5614622812f47-3d852bea3c1msb6e;
        Thu, 4 Jul 2024 06:21:10 -0700 (PDT)
X-Received: by 2002:a17:902:f645:b0:1f9:b681:194b with SMTP id d9443c01a7336-1fb33e4133bmr14379485ad.22.1720099269754;
        Thu, 04 Jul 2024 06:21:09 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1720099269; cv=none;
        d=google.com; s=arc-20160816;
        b=Pu95wkOm13dXIapXaueP0hdfvw1p5c7z94n3456q+HPkNLDThgzK7nOlWgHhf/IZ9a
         D5O61tDmCCJxpN1xzPPscoVKdJGZCG/VfvXJ6TpOFIYQ9HWn6H7dn19h7ezDMV8spnAv
         yTjrytIPud6Vw7E1tsXs1MWiics7Zr9ySsR5WSGcsPyk16KHM5OVksRJCfb9lGXlIKA2
         8NqwAjtjwQMvEeCwngnCUZOYFPxUj1DEyRAQciopSl40dnIFKWPEJmGZ2v12YxaqFplh
         oRk4ROD1NSfwWVxyVIRqWGDtCDC1Po5IndpsZ7ihwtpgNSi6s2eUVUsl8YoYDO6f49hk
         J27A==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=cc:to:subject:message-id:date:from:in-reply-to:references
         :mime-version:dkim-signature;
        bh=Fl61C9c0fJzbBnKHiU6CfLfG9E7vpzOfvbwz/1swJrM=;
        fh=VUyRMGDsLDyKXHBc8DWjokFBiSMTvXavinKdBJZhUls=;
        b=jBZle0RaqbOHIXLVF2Gwia8mHeWE/P+XtLl4Li0z3dognXGsWj7J42KDpKfYyHUfCe
         YdbhsZpJkK+w3/mP28wQgW77MDTnnBOD3b5Tdnfm2z4gMF5bpZCVPX9OJfFNdcPiUd7Z
         tK4+g9OfMCeSzJLi3XiGXd6NtRTwvy3utTXuJcXTrKYOVa4UZsLgVKNhoEbcUYBNpXGQ
         7oN0ZyfGpgSfgs/+htbUGFZivmBowa2InaZG8MsszlZZGCqjTnYZvP+240FSuxojn2UU
         AjAVzUmvSPJIQLsMcWUHdk7hzYBth5E82DsSql1prshBy9FeWzn7p7idFVxrrsBu/Sht
         sbrQ==;
        dara=google.com
ARC-Authentication-Results: i=1; gmr-mx.google.com;
       dkim=pass header.i=@gmail.com header.s=20230601 header.b=Y9h0Q4UX;
       spf=pass (google.com: domain of antoine.riard@gmail.com designates 2607:f8b0:4864:20::d35 as permitted sender) smtp.mailfrom=antoine.riard@gmail.com;
       dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com
Received: from mail-io1-xd35.google.com (mail-io1-xd35.google.com. [2607:f8b0:4864:20::d35])
        by gmr-mx.google.com with ESMTPS id d9443c01a7336-1fafc0f2d5csi1731905ad.9.2024.07.04.06.21.09
        for <bitcoindev@googlegroups.com>
        (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128);
        Thu, 04 Jul 2024 06:21:09 -0700 (PDT)
Received-SPF: pass (google.com: domain of antoine.riard@gmail.com designates 2607:f8b0:4864:20::d35 as permitted sender) client-ip=2607:f8b0:4864:20::d35;
Received: by mail-io1-xd35.google.com with SMTP id ca18e2360f4ac-7eb895539e3so26214039f.2
        for <bitcoindev@googlegroups.com>; Thu, 04 Jul 2024 06:21:09 -0700 (PDT)
X-Received: by 2002:a05:6602:15:b0:7f6:6634:f382 with SMTP id
 ca18e2360f4ac-7f66dec2392mr195189539f.9.1720099268894; Thu, 04 Jul 2024
 06:21:08 -0700 (PDT)
MIME-Version: 1.0
References: <gnM89sIQ7MhDgI62JciQEGy63DassEv7YZAMhj0IEuIo0EdnafykF6RH4OqjTTHIHsIoZvC2MnTUzJI7EfET4o-UQoD-XAQRDcct994VarE=@protonmail.com>
 <72e83c31-408f-4c13-bff5-bf0789302e23n@googlegroups.com> <heKH68GFJr4Zuf6lBozPJrb-StyBJPMNvmZL0xvKFBnBGVA3fVSgTLdWc-_8igYWX8z3zCGvzflH-CsRv0QCJQcfwizNyYXlBJa_Kteb2zg=@protonmail.com>
 <5b0331a5-4e94-465d-a51d-02166e2c1937n@googlegroups.com> <yt1O1F7NiVj-WkmnYeta1fSqCYNFx8h6OiJaTBmwhmJ2MWAZkmmjPlUST6FM7t6_-2NwWKdglWh77vcnEKA8swiAnQCZJY2SSCAh4DOKt2I=@protonmail.com>
 <be78e733-6e9f-4f4e-8dc2-67b79ddbf677n@googlegroups.com> <jJLDrYTXvTgoslhl1n7Fk9-pL1mMC-0k6gtoniQINmioJpzgtqrJ_WqyFZkLltsCUusnQ4jZ6HbvRC-mGuaUlDi3kcqcFHALd10-JQl-FMY=@protonmail.com>
 <9a4c4151-36ed-425a-a535-aa2837919a04n@googlegroups.com> <3f0064f9-54bd-46a7-9d9a-c54b99aca7b2n@googlegroups.com>
 <26b7321b-cc64-44b9-bc95-a4d8feb701e5n@googlegroups.com> <CALZpt+EwVyaz1=A6hOOycqFGJs+zxyYYocZixTJgVmzZezUs9Q@mail.gmail.com>
 <607a2233-ac12-4a80-ae4a-08341b3549b3n@googlegroups.com> <3dceca4d-03a8-44f3-be64-396702247fadn@googlegroups.com>
 <301c64c7-0f0f-476a-90c4-913659477276n@googlegroups.com> <e2c61ee5-68c4-461e-a132-bb86a4c3e2ccn@googlegroups.com>
 <33dfd007-ac28-44a5-acee-cec4b381e854n@googlegroups.com>
In-Reply-To: <33dfd007-ac28-44a5-acee-cec4b381e854n@googlegroups.com>
From: Antoine Riard <antoine.riard@gmail.com>
Date: Thu, 4 Jul 2024 14:20:57 +0100
Message-ID: <CALZpt+Fs1U5f3S6_tR7AFfEMEkgBPSp3OaNEq+eqYoCSSYXD7g@mail.gmail.com>
Subject: Re: [bitcoindev] Re: Great Consensus Cleanup Revival
To: Eric Voskuil <eric@voskuil.org>
Cc: Bitcoin Development Mailing List <bitcoindev@googlegroups.com>
Content-Type: multipart/alternative; boundary="000000000000e6ad67061c6bd10c"
X-Original-Sender: antoine.riard@gmail.com
X-Original-Authentication-Results: gmr-mx.google.com;       dkim=pass
 header.i=@gmail.com header.s=20230601 header.b=Y9h0Q4UX;       spf=pass
 (google.com: domain of antoine.riard@gmail.com designates 2607:f8b0:4864:20::d35
 as permitted sender) smtp.mailfrom=antoine.riard@gmail.com;       dmarc=pass
 (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com
Precedence: list
Mailing-list: list bitcoindev@googlegroups.com; contact bitcoindev+owners@googlegroups.com
List-ID: <bitcoindev.googlegroups.com>
X-Google-Group-Id: 786775582512
List-Post: <https://groups.google.com/group/bitcoindev/post>, <mailto:bitcoindev@googlegroups.com>
List-Help: <https://groups.google.com/support/>, <mailto:bitcoindev+help@googlegroups.com>
List-Archive: <https://groups.google.com/group/bitcoindev
List-Subscribe: <https://groups.google.com/group/bitcoindev/subscribe>, <mailto:bitcoindev+subscribe@googlegroups.com>
List-Unsubscribe: <mailto:googlegroups-manage+786775582512+unsubscribe@googlegroups.com>,
 <https://groups.google.com/group/bitcoindev/subscribe>
X-Spam-Score: -0.5 (/)

--000000000000e6ad67061c6bd10c
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

> I assume this function lets you search for an element starting in the
middle of a single-linked list (the middle because you could call
`ft_list_find(&p-next, data_ref)` where `p` points to any element in the
> middle of the list, including possibly the last item in the list, in
which case the loop body wouldn't run). If so, I don't think this does
what's intended. This actually unlinks (and memory-leaks) elements up to >
where the match is found. I think you want to advance `start_list` this way
(I didn't test this):

Note the usage of a pointer to pointer so the correct way to call the code
is : `pointer_t * list_ptr ; list_ptr =3D first_list_element ;
ft_list_find(list_ptr, data_rf, cmp);`.
This is correct that if you point to the last item in the list, the loop
body wouldn't run (which is the expected behavior). When there is a match,
the pointer `*start_list` takes as value the memory address of the next
element in the list, the contained structure pointer is not changed. The
code has been tested a while back, though it's indeed clearer if a typedef
`pointer_t` for list is fully given:

```
typedef struct                 s_list
{
                         void     *content;
                         size_t  content_size;
                         struct  s_list. *next;
}                                      pointer_t
```

> This is why we don't use C - unsafe, unclear, unnecessary.

Actually, I think libbitcoin is using its own maintained fork of secp256k1,
which is written in C.
For sure, I wouldn't recommend using C across a whole codebase as it's not
memory-safe (euphemism) though it's still un-match if you wish to
understand low-level memory management in hot paths.
It can be easier to use C++ or Rust, though it doesn't mean it will be as
(a) perf optimal and (b) hardened against side-channels.

I have not read in detail the last Eric's email on the whole caching
identity in case of invalidity discussion, though I'll do so.

Best,
Antoine


Le jeu. 4 juil. 2024 =C3=A0 00:57, Eric Voskuil <eric@voskuil.org> a =C3=A9=
crit :

> This is why we don't use C - unsafe, unclear, unnecessary.
>
> e
>
> --
> You received this message because you are subscribed to a topic in the
> Google Groups "Bitcoin Development Mailing List" group.
> To unsubscribe from this topic, visit
> https://groups.google.com/d/topic/bitcoindev/CAfm7D5ppjo/unsubscribe.
> To unsubscribe from this group and all its topics, send an email to
> bitcoindev+unsubscribe@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/bitcoindev/33dfd007-ac28-44a5-acee-cec4=
b381e854n%40googlegroups.com
> <https://groups.google.com/d/msgid/bitcoindev/33dfd007-ac28-44a5-acee-cec=
4b381e854n%40googlegroups.com?utm_medium=3Demail&utm_source=3Dfooter>
> .
>

--=20
You received this message because you are subscribed to the Google Groups "=
Bitcoin Development Mailing List" group.
To unsubscribe from this group and stop receiving emails from it, send an e=
mail to bitcoindev+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/=
bitcoindev/CALZpt%2BFs1U5f3S6_tR7AFfEMEkgBPSp3OaNEq%2BeqYoCSSYXD7g%40mail.g=
mail.com.

--000000000000e6ad67061c6bd10c
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">&gt; I assume this function lets you search for an element=
 starting in the middle of a single-linked list (the middle because you cou=
ld call `ft_list_find(&amp;p-next, data_ref)` where `p` points to any eleme=
nt in the<div>&gt; middle of the list, including possibly the last item in =
the list, in which case the loop body wouldn&#39;t run). If so, I don&#39;t=
 think this does what&#39;s intended. This actually unlinks (and memory-lea=
ks) elements up to &gt; where the match is found. I think you want to advan=
ce `start_list` this way (I didn&#39;t test this):<div><br></div><div>Note =
the usage of a pointer to pointer so the correct way to call the code is : =
`pointer_t * list_ptr ; list_ptr =3D first_list_element ; ft_list_find(list=
_ptr, data_rf, cmp);`.</div><div>This is correct that if you point to the l=
ast item in the list, the loop body wouldn&#39;t run (which is the expected=
 behavior). When there is a match, the pointer `*start_list` takes as value=
 the memory address of the next element in the list, the contained structur=
e pointer is not changed. The code has been tested a while back, though it&=
#39;s indeed clearer if a typedef `pointer_t` for list is fully given:=C2=
=A0</div></div><div><br></div><div>```</div><div>typedef struct =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 s_list</div><div>{</div><div>=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0void =C2=A0 =C2=A0 *content;</div><div>=C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0si=
ze_t =C2=A0content_size;</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0struct =C2=A0s_list. *n=
ext;</div><div>} =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0pointer_t</div><div>```</div><div><br></div><div>&gt; This is why we don=
&#39;t use C - unsafe, unclear, unnecessary.<br></div><div><br></div><div>A=
ctually, I think libbitcoin is using its own maintained fork of secp256k1, =
which is written in C.</div><div>For sure, I wouldn&#39;t recommend using C=
 across a whole codebase as it&#39;s not memory-safe (euphemism) though it&=
#39;s still un-match if you wish to understand low-level memory management =
in hot paths.</div><div>It can be easier to use C++ or Rust, though it does=
n&#39;t mean it will be as (a) perf optimal and (b) hardened against side-c=
hannels.</div><div><br></div><div>I have not read in detail the last Eric&#=
39;s email on the whole caching identity in case of invalidity discussion, =
though I&#39;ll do so.</div><div><br></div><div>Best,</div><div>Antoine</di=
v><div><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" clas=
s=3D"gmail_attr">Le=C2=A0jeu. 4 juil. 2024 =C3=A0=C2=A000:57, Eric Voskuil =
&lt;<a href=3D"mailto:eric@voskuil.org">eric@voskuil.org</a>&gt; a =C3=A9cr=
it=C2=A0:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0p=
x 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color=
:rgb(204,204,204);padding-left:1ex">This is why we don&#39;t use C - unsafe=
, unclear, unnecessary.<div><br></div><div>e</div>

<p></p>

-- <br>
You received this message because you are subscribed to a topic in the Goog=
le Groups &quot;Bitcoin Development Mailing List&quot; group.<br>
To unsubscribe from this topic, visit <a href=3D"https://groups.google.com/=
d/topic/bitcoindev/CAfm7D5ppjo/unsubscribe" target=3D"_blank">https://group=
s.google.com/d/topic/bitcoindev/CAfm7D5ppjo/unsubscribe</a>.<br>
To unsubscribe from this group and all its topics, send an email to <a href=
=3D"mailto:bitcoindev+unsubscribe@googlegroups.com" target=3D"_blank">bitco=
indev+unsubscribe@googlegroups.com</a>.<br>
To view this discussion on the web visit <a href=3D"https://groups.google.c=
om/d/msgid/bitcoindev/33dfd007-ac28-44a5-acee-cec4b381e854n%40googlegroups.=
com?utm_medium=3Demail&amp;utm_source=3Dfooter" target=3D"_blank">https://g=
roups.google.com/d/msgid/bitcoindev/33dfd007-ac28-44a5-acee-cec4b381e854n%4=
0googlegroups.com</a>.<br>
</blockquote></div>

<p></p>

-- <br />
You received this message because you are subscribed to the Google Groups &=
quot;Bitcoin Development Mailing List&quot; group.<br />
To unsubscribe from this group and stop receiving emails from it, send an e=
mail to <a href=3D"mailto:bitcoindev+unsubscribe@googlegroups.com">bitcoind=
ev+unsubscribe@googlegroups.com</a>.<br />
To view this discussion on the web visit <a href=3D"https://groups.google.c=
om/d/msgid/bitcoindev/CALZpt%2BFs1U5f3S6_tR7AFfEMEkgBPSp3OaNEq%2BeqYoCSSYXD=
7g%40mail.gmail.com?utm_medium=3Demail&utm_source=3Dfooter">https://groups.=
google.com/d/msgid/bitcoindev/CALZpt%2BFs1U5f3S6_tR7AFfEMEkgBPSp3OaNEq%2Beq=
YoCSSYXD7g%40mail.gmail.com</a>.<br />

--000000000000e6ad67061c6bd10c--